HiCat Data Dictionary

The main HiRISE catalog contains all the information used in operating
the HiRISE camera after it is attached to the MRO spacecraft. The
information is divided into those related to suggesting, planning,
commanding, retrieving, processing, validating, and distributing
the observations. The tag that follows an observation through all
these catalogs (and from Earth to Mars and back) is the unique
Observation_ID. This text representation
also forms the core of the product names. The HiRISE catalog also
contains ancillary information needed in various uplink and downlink
activities, such as the people making image suggestions, MRO project
uplink files, SPICE and engineering data, and public image releases.

Table:Orbits

This table holds MRO orbital information related to specific orbits. These
generally take the form of times (eg. the light-to-dark terminator
crossing time, etc).

Field

Description

Type

Null

Limits

Size

Key

Default

Authority

Source

ORBIT_NUMBER

The MRO Orbit Number for which information is being stored.

INT(10) unsigned

Not Null

Primary Key

db server

DEQUAX_TIME

The date and time of the descending equator crossing. This
time is essentially the start time of the given orbit and occurs on the
night side of Mars.

DATETIME

OPTG file

AEQUAX_TIME

The date and time of the ascending equator crossing. This
occurs on the day side of Mars.

DATETIME

OPTG file

NPOLEX_TIME

North polar minimum slant range crossing time.

DATETIME

OPTG file

SPOLEX_TIME

South polar minimum slant range crossing time.

DATETIME

OPTG file

LDTERM_TIME

Light-dark terminator crossing time.

DATETIME

OPTG file

DLTERM_TIME

Dark-light terminator crossing time.

DATETIME

OPTG file

DEQUAX_LSUBS

The solar longitude at the time of the descending equator
crossing.

DOUBLE

Derived from OPTG time

LAST_UPDATE

This column records the last time that a record was updated.

TIMESTAMP

db server

Field: the field name within the table.

Description: the definition for the field.

Type: the data type of the field.

Null: whether the field is allowed to be null.

Limits: the acceptable data range for the field.

Size: the upper limit data storage size for the field.

Default: the default value for the field.

Authority: the agency responsible for definition of the field.

Source: the most frequent source of data for this field.

Table Options:

type=InnoDB

Copyright (C) 2015 Arizona Board of Regents on
behalf of the Planetary Image Research Laboratory,
Lunar and Planetary Laboratory at the University
of Arizona.